Strong AI vs Singularity - which should happen first?
The definition of "technological singularity" answers the question:


  The technological singularity (also, simply, the singularity) is
  the hypothesis that the invention of artificial superintelligence will
  abruptly trigger runaway technological growth, resulting in
  unfathomable changes to human civilization.


(wiki)

note the order of facts is "invention of artificial superintelligence" (AGI) followed by the "unfathomable changes".